my 4 year old son gets pretty clean about 75% of the time, but there are days
when it is not so great. I 2nd the wipes and having a pedi tell you to do it then the SW can't argue as much.
Our DD took a long time to get it, she is 9 and just this last year we could really trust her to get herself clean. She has fine motor delays and just didn't have the dexterity or hand strength to do the job well.
Karla